Home / 13,180.20-19,770.34-4,415.16

Finding the Fourth Proportional to 13,180.20, 19,770.34 and 4,415.16

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Solution

The fourth proportional to 13,180.20, 19,770.34 and 4,415.16 is: 6,622.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180.20 : 19,770.34 = 4,415.16 : x
  2. Step 2: Convert to fraction form
    13,180.20/19,770.34 = 4,415.16/x
  3. Step 3: Cross multiply
    13,180.20x = 19,770.34 × 4,415.16
  4. Step 4: Simplify right side
    13,180.20x = 87,289,214.35
  5. Step 5: Solve for x
    x = 87,289,214.35/13,180.20
  6. Step 6: Final answer
    x = 6,622.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.